7CH4Q45(N) and 7CH4Q90(N) MICROPROCESSOR FOUR QUADRANT CONTROLLER FOR PM DC MOTORS
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7CH4Q45_90N_E_1_S DATE : 08/01/2007 REV. 1.0 7CH4Q45(N) and 7CH4Q90(N) MICROPROCESSOR FOUR QUADRANT CONTROLLER FOR PM DC MOTORS - USER’S GUIDE -

08/01/2007 7CH4Q_45_90N_E_1_S 1 - INTRODUCTION - The controller 7CH4Q45N / 90N is a 4 quadrant chopper for PMDC motors powered by battery 24/36V for traction applications. The chopper is equipped with a powerful microprocessor for digital control of the speed, current regulation and failures of the motor ; an efficient diagnostics of the failures and wrong wiring connections, programmability of the main parameters . The MOSFET power stage is an “H bridge” configuration operating with PWM. The ripple of the current is very low so the efficiency of the system is very high . The chopper is...

08/01/2007 7CH4Q_45_90N_E_1_S 3 - COMPLETE WIRING DIAGRAM -

08/01/2007 7CH4Q_45_90N_E_1_S 4 - I/O CONNECTOR - 16v Molex connector (Molex p/n.39012160, contacts p/n.39000038) Pin 1: HI –POT. INPUT Positive Potentiometer Supply Pin 2: C-POT.INPUT Central Potentiometer, or Voltage (0-5Vdc) Speed Reference Input Pin 3: LO-POT.INPUT Negative Potentiometer Supply, or Gnd Voltage Speed Reference Input Pin 4: Pin 2:V_MAX (OPTIONAL) Max Speed input voltage (0 – 5 V) or Max speed input potentiometer (>100 KÙ). Pin 5: PUSH (IF NOT USED MUST BE CLOSED TO PIN14) Default N.C. input contact ( +V_Batt/Pin14) for Backward safety. This input is active when open. Pin...

08/01/2007 7CH4Q_45_90N_E_1_S 5 Pin 10: ALARM Connection for the diagnostic Blinking Led indicator (5Vdc-10mA) output : the number of blinks means the alarm type (example 5 blinks= Alarm 5). Pin 11: MULTIMODE Default N.O. input to +V battery. Pin 12: FORWARD SWITCH N.O. input to +V battery. Pin 13: BACKWARD SWITCH N.O. input to +V battery. Pin 14: COMMON HIGH +V battery output for switches. Pin 15: KEY IN Key switch input (+V battery). Pin 16: HOURMETER Hour-meter output ( +V battery when running, 100mA max). 4v Molex connector (Molex p/n.3901240, contacts p/n. 39000038) Used for handheld...

08/01/2007 7CH4Q_45_90N_E_1_S 6 PARAMETERS: RESET TO DEFAULT Reset to default parameters ACCELERATION RAMP Acceleration ramp REVERSE RAMP Reverse deceleration ramp NEUTRAL RAMP Neutral deceleration ramp FORWARD SPEED Forward maximum speed BACKWARD SPEED Backward maximum speed MINIMUM SPEED Minimum speed BATTERY VOLTAGE Battery Voltage SPEED REFERENCE Speed Reference REF. DEADBAND Dead-band of the speed reference BRAKE DELAY Brake delay MULTIMODE SPEED Speed in Multimode MULTIMODE CURRENT Current in Multimode BW SAFETY TIME Backward safety time BW SAFETY SPEED Backward safety speed LOW...